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Quality Inspection for Free Sample D&C Red No. 22 Eosin CAS 17372-87-1 Dye for Biological Indicator


  • CAS: 17372-87-1
  • Molecular Formula: C20H6Br4Na2O5
  • Molecular Weight: 691.85418
  • EINECS: 241-409-6
  • Synonyms: EOSIN YELLOWISH SOLUTION 20 G/L, S34 2.5 L; EOSIN YELLOWISH SOLUTION, FOR MICROSCOPY; EOSIN YELLOWISH, PURUM, WATER-SOLUBLE, FOR MICROSCOPY; EOSIN-HEMATOXYLIN SOLUTION ACC. TO EHRLI CH, F. MICROSCOPY; EOSIN Y C.I. NO. 45380 , TECHNICAL DYE; EOSIN Y SOLUTION INDICATOR
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    Dedicated to strict quality management and considerate client company, our experienced team associates are generally available to discuss your demands and make certain full purchaser pleasure for Quality Inspection for Free Sample D&C Red No. 22 Eosin CAS 17372-87-1 Dye for Biological Indicator, “Change for the better!” is our slogan, which means “A better world is before us, so let’s enjoy it!” Change for the better! Are you ready?
    Dedicated to strict quality management and considerate client company, our experienced team associates are generally available to discuss your demands and make certain full purchaser pleasure for Eosin Y and D&C Red No. 22, After 13 years of researching and developing merchandise, our brand can represent wide range of products with outstanding quality in world market. We’ve got completed big contracts from many countries such as Germany, Israel, Ukraine, United Kingdom, Italy, Argentina, France, Brazil, and so on. You probably feel secure and satisfy when copperate with us.

    Water soluble eosin Y is a chemically synthesized acidic dye that dissociates into negatively charged anions in water and binds with positively charged cations of protein amino groups to stain the cytoplasm. The cytoplasm, red blood cells, muscles, connective tissue, eosin granules, etc. are stained to varying degrees of red or pink, forming a sharp contrast with the blue nucleus.

    Item Specification
    Melting point >300°C
    Vapor pressure 0Pa at 25℃
    Flash point 11 °C
    Density 1.02 g/mL at 20 °C
    Storage conditions Store at RT.
    pKa 2.9, 4.5(at 25℃)

    Eosin is a good dye for cytoplasm. Usually used in conjunction with other dyes such as hematoxylin or methylene blue. Used as a biological staining agent. EOSIN is also used as an adsorption indicator for precipitation titration determination of Br -, I -, SCN -, MoO, Ag+, etc. Used as a chromogenic agent for the fluorescence photometric determination of Ag+, Pb2+, Mn2+, Zn2+, etc.

    Usually packed in 25kg/drum,and also can be do customized package.

    Dedicated to strict quality management and considerate client company, our experienced team associates are generally available to discuss your demands and make certain full purchaser pleasure for Quality Inspection for Free Sample D&C Red No. 22 Eosin CAS 17372-87-1 Dye for Biological Indicator, “Change for the better!” is our slogan, which means “A better world is before us, so let’s enjoy it!” Change for the better! Are you ready?
    Quality Inspection for Eosin Y and D&C Red No. 22, After 13 years of researching and developing merchandise, our brand can represent wide range of products with outstanding quality in world market. We’ve got completed big contracts from many countries such as Germany, Israel, Ukraine, United Kingdom, Italy, Argentina, France, Brazil, and so on. You probably feel secure and satisfy when copperate with us.


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